George wakefield fox



Patented Aug. 28, 1894.

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G. W. FOX. MANUFACTURE 0F PIPES.

(No Model.)

WITNESSES:

UNITED STATES PATENT OFFICE.

GEORGE WAKEFIELD FOX, OF MANCHESTER, ENGLAND.

MANUFACTU RE OF PIPES.

SPECIFICATION forming part of Letters Patent No. 525,197, dated August28, 1894. Application filed September 21, 1893. Serial No. 436,092. (N0specimens.) Patented in England June 16, 1893, N0. 11,868-

.To aZZ whom it may concern:

Be it known that I, GEORGE WAKEFIELD FOX, a subject of the Queen ofGreat Britain, residing in Rusholme, Manchester, England, have inventedcertain new and useful Improvements in the Manufacture of Pipes, ofwhich the following is a full, clear, and exact description, and forwhich I have obtained Letters Patent in Great Britain, No. 11,868, datedJune 16, 1893. r

The object of the invention is to provide certain new and usefulimprovements in the manufacture of lead or other pipes, whereby a pipeis produced capable of withstanding a heavy pressure of the fluidspassing through the pipe. For this purpose I employ a method consistingin passing the molten metal through a die and around the end of a coreor mandrel and simultaneously feeding a wire into the metal at the die.

The invention also consists of a machine for carrying the above methodinto effect, all ashereinaftermorefullydescribed and pointed out in theclaims.

Reference is to be had to the accompanying drawings, forminga part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a sectional side elevation of the pipe showing the coilembedded at the inner surface of the pipe. Fig. 2 is a similar view ofthe same, showing the coil embedded in the wall of the pipe. Fig. 3 is alike view of the improvement showing the coil as forming an interiorlining for the pipe; and Fig. 4 is a sectional side elevation of themachine for forming the pipe.

As illustrated in Fig. 1, the pipe A, made of lead or other suitablematerial, is provided with a coil of round, flat or other wire B,embedded at the inner surface of the said pipe so as to slightly projectinto the opening or hollow of the pipe, as shown. As illustrated in Fig.2, the coil of wire B is completely embedded in the wall of the pipe A,so that the wire does not project either on the outer face nor on theinner surface, and in Fig. 3, the wire is shown to form a complete innerlining for the pipe A. It will be understood that in each case theconvolutions of the wire coil are der 0 reciprocates a plunger D forpressing the material into the conical aperture E of the die E formingthe bottom for the cylinder (J. Into this conical aperture E projectsthe l core F of the mandrel F, arranged centrally in the cylinder 0 andpassing through thefo plunger D, as plainly illustrated in Fig. 3. Theouter end of this mandrel F carries a! sprocket wheel G, over whichpasses a sprocket chain H, connected with suitable machinerjy forimparting a rotary motion to the sai sprocket wheel G and the mandrel F.Gear-\. ing or other means may be employed to rotate the mandrel F. Thelatter is made hollow with the exception of the core F, and the lowerend is provided with an aperture F through which passes the wire B fedin and through the hollow mandrel F to form the coil of wire B aroundthe core F in the aperture E at the time the pipe is formed by theplunger pressing the material in and through the aperture E of the dieE. The aperture F is located in close proximity to the apertgre E and,by varying the location of this aper'tiirew. relative to the aperture E,the wire will be 3 fed either on the inner surface of the pipe A or inthe sides thereof, as illustrated in Figs. 1 and 2., It will be seenthat a pipe formed in this manner is very strong and durable and capableof resisting heavy pressure.

Having thus described my invention, I 0

claim as new and desire to secure by Letters Patent- 1. Theherein-described method of manufacturing pipes, which consists informing the metal into a tubular shape and simultaneously 5 feeding awire into the metal, and coiling the wire while it is being fed,substantially as described.

2. In a machine for manufacturing pipes,

the combination, with the means for form ipg. 10o

the pipe body, of a revolving mandrel provided with means for feedingthe Wire into the metal and simultaneously coiling the said wire,substantially as described.

5 3. A machine for manufacturing lead and other pipes, comprising acylinder having a reciprocating plunger, an apertured die through whichthe material is forced by the plunger, a core extending into theaperture of the die, and a hollow revolving mandrel IO carrying the saidcore and adapted to feed a Wire into the metal at the die, substantiallyas shown and described.

GEORGE "WAKEFIELD FOX.

Witnesses:

JNo. LEDsHAW, A. R. THOMPSON.

